One day you were a 3 year old toddler. You were abandoned by your parents because you have heart disease. Your parents threw you away when you recovered they left you in the park

you cry looking for your parents but no one knows so you just sit on a park bench until the afternoon you fall asleep

when you wake up you wake up in someone's house. There are two boys, namely Sae who is 12 years old while Rin is 10 years old

rin: Nii chan she woke up..

sae: oh hi welcome to our house we